For some data e.g. users I use two Ecto schemas for the same table, one with the full data and one with a small subset (id, username, full name). This makes it

For some data e.g. users I use two Ecto schemas for the same table, one with the full data and one with a small subset (id, username, full name). This makes it really easy to load just the data that's truly needed in associations etc.